1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
//! Mini Moka is a fast, concurrent cache library for Rust. Mini Moka is a light
//! edition of [Moka][moka-git].
//!
//! Mini Moka provides an in-memory concurrent cache implementation on top of hash
//! map. It supports high expected concurrency of retrievals and updates.
//!
//! Mini Moka also provides an in-memory, non-thread-safe cache implementation for
//! single thread applications.
//!
//! All cache implementations perform a best-effort bounding of the map using an
//! entry replacement algorithm to determine which entries to evict when the capacity
//! is exceeded.
//!
//! [moka-git]: https://github.com/moka-rs/moka
//! [caffeine-git]: https://github.com/ben-manes/caffeine
//!
//! # Features
//!
//! - A thread-safe, highly concurrent in-memory cache implementation.
//! - A cache can be bounded by one of the followings:
//! - The maximum number of entries.
//! - The total weighted size of entries. (Size aware eviction)
//! - Maintains good hit rate by using entry replacement algorithms inspired by
//! [Caffeine][caffeine-git]:
//! - Admission to a cache is controlled by the Least Frequently Used (LFU) policy.
//! - Eviction from a cache is controlled by the Least Recently Used (LRU) policy.
//! - Supports expiration policies:
//! - Time to live
//! - Time to idle
//!
//! # Examples
//!
//! See the following document:
//!
//! - A thread-safe, synchronous cache:
//! - [`sync::Cache`][sync-cache-struct]
//! - A not thread-safe, blocking cache for single threaded applications:
//! - [`unsync::Cache`][unsync-cache-struct]
//!
//! [sync-cache-struct]: ./sync/struct.Cache.html
//! [unsync-cache-struct]: ./unsync/struct.Cache.html
//!
//! # Minimum Supported Rust Versions
//!
//! This crate's minimum supported Rust versions (MSRV) are the followings:
//!
//! | Feature | MSRV |
//! |:-----------------|:--------------------------:|
//! | default features | Rust 1.61.0 (May 19, 2022) |
//!
//! If only the default features are enabled, MSRV will be updated conservatively.
//! When using other features, MSRV might be updated more frequently, up to the
//! latest stable. In both cases, increasing MSRV is _not_ considered a
//! semver-breaking change.
pub
pub
pub use Policy;